Spalted Walnut Top

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Spalted Walnut is technically not a specific species of Walnut, Spalting is any form of wood coloration caused by fungi and can also occur even in living trees.
Walnut (Junglas regia) is a relatively slow-growing tree, and is grown extensively for nut. The wood is very high quality, and is used for furniture, rifle stocks, and musical instruments. It is a porous wood, like the other walnuts, and is denser and heavier than black walnut.